adding entries to GtkWindowPosition

[Justin Georgeson <jgeorgeson mastercontrol net>]

I would like to modify gdm so that the login dialog is in the corner of
the screen, not the center. It makes a call to 
gnome_preferences_set_dialog_position (GtkWindowPosition p). But his
only allows for CENTER, MOUSE, and NONE. How do I expand the
functionality of this to include corners (ie BOTTOM_LEFT, BOTTOM_RIGHT,
etc.)?

-- 
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; Justin Georgeson                                  "free the mallocs" ;
; Metrowerks Austin - Desktop Java QA Engineer                         ;
; http://www.metrowerks.com                                            ;
; mailto:jgeorgeson@mastercontrol.net                                  ;
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